<template>
    <div class="icons">
        <swiper :options="swiperOptions" >
            <swiper-slide v-for="(page, index) of pages" :key="index">
                <div class="icon" v-for="item of page" :key="item.id">
                    <div class="icon-img">
                        <img class="icon-img-content" :src='item.imgUrl'>
                    </div>
                    <p class="icon-desc">{{ item.desc }}</p>
                </div>
            </swiper-slide>
        </swiper>
    </div>
</template>
<script>
export default {
  name: 'HomeIcons',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOptions: {
        autoplay: false
        // 阻止轮播图自行滚动
      }
    }
  },
  computed: {
    /* 通过计算、一个icon内显示8个；多余的另外的页面进行显示 */
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>
<style  lang="stylus" scoped>
    @import '~styles/varibles.styl'
    @import '~styles/mixins.styl'
    .icons >>> .swiper-container
        height 0
        padding-bottom 50%
    .icons
        margin-top .1rem
        .icon
            overflow  hidden
            float left
            width  25%
            height 100%
            padding-bottom 25%
            position relative
            .icon-img
                position absolute
                top 0
                left 0
                right 0
                bottom 0.44rem
                box-sizing border-box/* 规定两个并排的带边框的框： */
                padding .1rem
                .icon-img-content
                    height 100%
                    display block
                    margin 0 auto
            .icon-desc
                position absolute
                left 0
                right 0
                bottom 0
                height 0.44rem
                line-height 0.44rem
                text-align center
                color $darkTextColor
                ellipsis()
</style>
